1. Research and Formulation: Understand the ingredients and formulations that are effective against fungal infections. Common ingredients in anti-fungal soaps include tea tree oil, ketoconazole, selenium sulfide, and pyrithione zinc. Research the concentrations and combinations that are safe and effective.

2. Regulatory Compliance: Ensure that your product complies with regulations set by regulatory bodies such as the FDA (in the United States) or equivalent organizations in your country. This includes proper labeling, safety testing, and adherence to manufacturing standards.

3. Manufacturing Facility: Set up or contract a manufacturing facility that can produce the soap according to your specifications. This may involve finding a facility that specializes in soap production or setting up your own if you have the resources.

4. Ingredient Sourcing: Source high-quality ingredients for your soap. This may involve finding suppliers for active ingredients like tea tree oil or ketoconazole, as well as the base soap ingredients like oils and lye.

5. Testing: Conduct testing to ensure the effectiveness and safety of your product. This may involve lab testing for efficacy against fungi as well as safety testing for skin irritation.

6. Packaging and Branding: Design packaging that communicates the benefits of your anti-fungal soap and appeals to your target market. Consider branding and marketing strategies to differentiate your product in the market.

7. Distribution: Determine how you will distribute your product. This could involve selling directly to consumers through online channels or through retailers and wholesalers.

Remember to consult with experts in formulation, regulatory compliance, and manufacturing to ensure that your anti-fungal soap meets all necessary standards and is safe and effective for consumers.